FACTORY ACTIVATED MF SEALED MF BATTERIES HAVE SUPER PURE MATERIALS. 4 TIMES CURRENT OF NORMAL BATTERY AFTER 8-MONTH-STORAGE AT ROOM TEMPERATIURE 20 DEG C. • LEAD-CALCIUM ALLOY GRIDS SLOWER DISCHARGE RATE OVER TIME AND PROLONG LIFE •SPILL-PROOF DESIGN ACHIEVES NO LEAKAGE •AGM TECHNOLOGY RESIST HEAT AND VIBRATION DAMAGE •HEAVY DUTY ACTIVE MATERIAL PROVIDES MORE POWER AND CCA